| abstract |
[Problem] To obtain a hair treatment agent having excellent decolorizing power, capable of uniformly dyeing the hair color to a bright and good shade, and having good storage stability. A hair treatment agent used by mixing a first agent containing an alkaline agent and a second agent containing hydrogen peroxide, wherein the first agent contains ammonia and carbonate, and the second agent is A phosphonic acid type chelating agent is contained, the first agent is an emulsion containing oil, water and a surfactant, and the content of the phosphonic acid type chelating agent in the mixture of the first agent and the second agent is 0. A hair treatment agent selected from a decoloring agent and a hair dye, which is from 0.01 to 0.2% by weight. The first agent is preferably a cream-like oil-in-water emulsion containing a higher alcohol as oil. [Selection figure] None |